My guess is that they've changed their mind and are going big with it to try and position Gambit as one of the main movie universe character, now that Jackman and Lawrence's times are coming to an end. Probably Gambit and Deadpool.
In some ways great because more Gambit and more exposure for the character. Cool. In other ways though, more chance to screw it up with all the Fox suits involved. I'm just trying not to think about it. In my head we're getting a Gambit film and that's it. I'll cross any other bridge that comes along when we get to it.
Edit: read the article after I posted that, just what I was saying!